Finding the Fourth Proportional to 23,467.50, 32,385.17 and 12,857.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,467.50 : 32,385.17 = 12,857.18 : x
2. Step 2: Convert to fraction form
   23,467.50/32,385.17 = 12,857.18/x
3. Step 3: Cross multiply
   23,467.50x = 32,385.17 × 12,857.18
4. Step 4: Simplify right side
   23,467.50x = 416,381,960.02
5. Step 5: Solve for x
   x = 416,381,960.02/23,467.50
6. Step 6: Final answer
   x = 17,742.92